Direct evidence for the quadruple metal–metal bond in the octachlorodimolybdenum(II) ion, [Mo2Cl8]4–, using X-ray emission spectroscopy
Abstract
Analysis of the MoLβ2,15(d–2p)X-ray emission peak from [Mo2Cl8]4– shows the presence of three molecular orbital energy levels, contributing to the Mo–Mo quadruple bond, together with a peak at a higher binding energy which is attributed to Mo–Cl bonding orbitals.